Oral instrument

Abstract

An oral instrument includes a first attachment to be secured to a first tooth or a brace worn on the first tooth; the second attachment piece is used for being fixed to a second tooth or a tooth socket worn on the second tooth, the first tooth and the second tooth are same-jaw teeth, and the first tooth or the second tooth has the displacement amount to be corrected in the first direction; the guide device is fixed with the first attachment part, and the guide device is fixedly or slidably connected with the second attachment part so as to limit relative rotation and / or movement of the second attachment part and the first attachment part in a non-first direction. According to the oral instrument disclosed by the invention, the relative displacement direction of two same-jaw teeth corresponding to the first attachment piece and the second attachment piece respectively is restrained through the guide device, so that the to-be-moved teeth are assisted to accurately move to a correction target position.

Description

Technical Field

[0001] The present invention belongs to the technical field of orthodontics, and particularly relates to an oral appliance. Background Art

[0002] In the field of orthodontics, tooth movement correction is often performed for tooth irregularities, such as angular inclination movement of teeth, overall movement of tooth position, and movement of tooth elongation or intrusion.

[0003] Among them, the overall movement of tooth position means that the crown and root of the tooth move simultaneously under the premise of applying an external force. Currently, displacement correction is usually performed through invisible aligners or wire braces. Although the orthodontic appliances are designed according to the current state and target state of the teeth, and it is hoped to provide an orthodontic force in the direction in which the teeth are expected to move; however, limited by the specific shape of the teeth and the influence of the surrounding dental tissues, there may still be some deviations during the movement. For example, when moving a tooth to the left, the acting point on the tooth is usually at the top right side, rather than directly to the right; this deviation in direction and angle causes the tooth to possibly not move along the expected trajectory, thus lengthening the orthodontic cycle and the orthodontic effect not reaching the expectation.

[0004] In view of this, it is necessary to provide an oral appliance to solve the above technical problems. Summary of the Invention

[0005] In order to solve one of the above problems in the prior art, the purpose of the present invention is to provide an oral appliance.

[0006] To achieve the above object of the invention, the present invention adopts the following technical solution:

[0007] An oral appliance, comprising:

[0008] A first attachment member for fixing to a first tooth or a dental appliance worn on the first tooth;

[0009] A second attachment member for fixing to a second tooth or a dental appliance worn on the second tooth, the first tooth and the second tooth being teeth in the same jaw, and the first tooth or the second tooth having a displacement amount to be corrected in a first direction;

[0010] A guiding device, the guiding device being fixed to the first attachment member, and the guiding device being fixed to or slidably connected to the second attachment member to restrict relative rotation and / or movement of the second attachment member and the first attachment member in a direction other than the first direction.

[0011] Further, the guiding device extends along the target arrangement direction of the first tooth and the second tooth.

[0012] Furthermore, the guide device includes a pair of guide rods arranged in the up-down direction, the first attachment is fixed to the guide rods, and the second attachment is slidably disposed between the pair of guide rods.

[0013] Further, the second attachment is provided with an annular groove, and the pair of guide rods are located in the groove; or, the second attachment is provided with a pair of sliding grooves respectively used to accommodate a pair of guide rods, and the pair of sliding grooves are respectively located at the top and bottom of the second attachment.

[0014] Furthermore, the guide rod is linear or curved.

[0015] Furthermore, the guide device further comprises at least one connecting rod, and the connecting rod connects the same end sides of the pair of guide rods.

[0016] Furthermore, the guiding device is a telescopic rod, and the telescopic rod is fixedly connected to the first attachment and the second attachment.

[0017] Furthermore, the telescopic rod extends along a straight line or a curve.

[0018] Furthermore, the oral appliance also includes a third attachment for fixing to a third tooth or a brace worn on the third tooth, and an auxiliary positioning member connecting the second attachment and the third attachment, and the third attachment is located on a side of the second attachment facing away from the first attachment.

[0019] Furthermore, the guiding device is detachably connected to the first attachment and the second attachment.

[0020] Furthermore, the oral appliance also includes a first brace worn on a first tooth and a second brace worn on a second tooth, and the first attachment and the second attachment are fixed to the first brace and the second brace respectively.

[0021] Further, the first brace has a through portion for the first attachment to pass through so as to be fixed to the first tooth, and / or the second brace has a through portion for the second attachment to pass through so as to be fixed to the second tooth.

[0022] Furthermore, the penetration portion is formed concavely from the gum side of the first brace and / or the second brace to the crown side.

[0023] Furthermore, the width of the penetration portion along the tooth arrangement direction is 1 to 1.5 times the displacement to be corrected.

[0024] Furthermore, the first brace and the second brace are integrally arranged and cover the entire row of teeth; or, the first brace and the second brace are separately arranged.

[0025] Further, the end of the first dental appliance facing the second dental appliance is designed as a closed end and is worn on the first tooth, and / or the end of the second dental appliance facing the first dental appliance is designed as a closed end and is worn on the second tooth.

[0026] Further, the first dental appliance and the second dental appliance are invisible orthodontic appliances, and the invisible orthodontic appliance covers at least two teeth.

[0027] An oral appliance, comprising:

[0028] A dental appliance, worn on the teeth of the same jaw;

[0029] A first attachment member, fixed to a portion of the dental appliance corresponding to any non-movable tooth;

[0030] A second attachment member, fixed to a portion of the dental appliance corresponding to any tooth to be moved, the tooth to be moved having a displacement amount to be corrected in a first direction;

[0031] A guiding device, the guiding device being fixed to the first attachment member, and the guiding device being fixed to or slidably connected to the second attachment member to limit the relative rotation and / or movement of the second attachment member and the first attachment member in a non-first direction.

[0032] Further, the dental appliance is an invisible orthodontic appliance.

[0033] Further, the guiding device is a guiding slide rail, the first attachment member is fixed to the guiding slide rail, and the second attachment member is slidably arranged on the guiding slide rail; or, the guiding device is a telescopic rod, and two ends of the telescopic rod are respectively fixed to the first attachment member and the second attachment member.

[0034] Further, the dental appliance includes a first dental appliance and a second dental appliance which are arranged in segments along the arrangement direction of the teeth of the same jaw, the first dental appliance covers non-movable teeth, and the second dental appliance covers teeth to be moved.

[0035] Compared with the prior art, the oral appliance of the present invention restricts the relative displacement direction of two teeth of the same jaw corresponding to the first attachment member and the second attachment member respectively through the guiding device, so as to assist the tooth to be moved to accurately move to the orthodontic target position. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural view of the oral appliance in an embodiment of the present invention;

[0037] Figure 2 is Figure 1 the shape of the first attachment member in

[0038] Figure 3 is Figure 1 the shape of the second attachment in

[0039] Figure 4 is Figure 3 the top view of the square second attachment in

[0040] Figure 5 is a schematic diagram of the application scenario of another oral instrument of the present invention;

[0041] Figure 6 is Figure 5 another schematic diagram of the application scenario of the oral instrument shown;

[0042] Figure 7 is Figure 5 another schematic diagram of the application scenario of the oral instrument shown;

[0043] Figure 8 is Figure 5 another schematic diagram of the application scenario of the oral instrument shown.

[0044] Wherein, 100 - oral instrument, 1 - first attachment, 2 - second attachment, 21 - card slot, 3 - guiding device, 31 - guiding rod, 32 - connecting rod, 33 - telescopic rod, 4 - first dental appliance, 5 - second dental appliance, 6 - third attachment, 7 - auxiliary positioning member, M1 - first tooth, M2 - second tooth, M3 - third tooth. Detailed implementation manners

[0045] The present invention will be described in detail below in conjunction with the specific implementation manners shown in the accompanying drawings. However, these implementation manners do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation manners is included within the protection scope of the present invention.

[0046] In the present invention, "fixed connection" means that the relative positions of the two are fixed; "sliding connection" etc. mean that the relative positions of the two are variable; "detachable connection" means that the two are convenient to disassemble and assemble; and "connection" is a broad connection method, including the aforementioned various connection methods, and also including direct connection or indirect connection.

[0047] Please refer to Figures 1 to 8 shown, which is the oral instrument 100 of the present invention, and it includes a first attachment 1, a second attachment 2, and a guiding device 3 that restricts the relative displacement direction of the first attachment 1 and the second attachment 2.

[0048] The oral appliance 100 is used to assist in orthodontically correcting two teeth in the same jaw that need to move relatively, and to restrict the direction of their relative displacement. The guiding device 3 restricts the direction of relative displacement of two teeth corresponding to the first attachment member 1 and the second attachment member 2 respectively, so as to assist the teeth to be moved to accurately move to the orthodontic target position.

[0049] The aforementioned two teeth can be the first tooth M1 and the second tooth M2 in the upper jaw or the lower jaw that have a displacement amount to be orthodontically corrected in the first direction. Here, the first direction refers to the direction in which the first tooth M1 or the second tooth M2 needs to move, and is preferably consistent with the ideal alignment direction / target alignment direction of the teeth in the same jaw.

[0050] It should be noted that the relative movement of the first tooth M1 and the second tooth M2 includes the situation where either one of the teeth moves or both teeth move. How to restrict the relative displacement of the first tooth M1 and the second tooth M2 by the oral appliance 100 will be described in detail below.

[0051] The first attachment member 1 is used to be fixed to the first tooth M1 or a first dental appliance 4 worn on the first tooth M1. The first dental appliance 4 is a dental appliance that can cover all of the first tooth M1, such as an integral dental appliance worn on the entire row of teeth in the same jaw, or a partial dental appliance worn on a part of the teeth in the same jaw.

[0052] The fixing method of the first attachment member 1 to the first tooth M1 includes but is not limited to bonding. It is preferably bonded to the labial-buccal side of the first tooth M1, more preferably to the middle and lower part of the labial-buccal side, close to the tooth root, so that the force application is more stable.

[0053] The first attachment member 1 being fixed to the first dental appliance 4 means being fixed to the position on the first dental appliance 4 corresponding to the first tooth M1, which is equivalent to being indirectly fixed to the first tooth M1; when the first tooth M1 moves relatively, the first attachment member 1 moves relatively synchronously. The fixing method of the first attachment member 1 to the first dental appliance 4 includes but is not limited to bonding, welding and other methods.

[0054] The second attachment member 2 is used to be fixed to the second tooth M2 or a second dental appliance 5 worn on the second tooth M2. The second dental appliance 5 has the same design concept as the first dental appliance 4 and is an integral dental appliance or a partial dental appliance. Moreover, the first dental appliance 4 and the second dental appliance 5 are only for the convenience of description, and the two can be integrally set as one dental appliance, or can be two separate dental appliances.

[0055] The fixing method of the second attachment 2 to the second tooth M2 includes but is not limited to bonding. Preferably, it is bonded to the middle and lower part of the labial and buccal sides of the second tooth M2, close to the tooth root, and the force application is more stable. The second attachment 2 is fixed at a position corresponding to the second tooth M2 on the second dental appliance 5, which is equivalent to being indirectly fixed to the second tooth M2; when the second tooth M2 is displaced relatively, the second attachment 2 is displaced relatively synchronously. The fixing method of the second attachment 2 to the second dental appliance 5 includes but is not limited to bonding, welding and other methods.

[0056] In a specific embodiment, such as Figure 1 or Figure 5 shown, the first attachment 1 and the second attachment 2 are respectively fixed to the first dental appliance 4 and the second tooth M2; or the first attachment 1 and the second attachment 2 are respectively fixed to the first tooth M1 and the second dental appliance 5; or as Figure 6 shown, the first attachment 1 and the second attachment 2 are respectively fixed to the first dental appliance 4 and the second dental appliance 5; or as Figure 7 and Figure 8 shown, the first attachment 1 and the second attachment 2 are respectively fixed to the first tooth M1 and the second tooth M2.

[0057] The guiding device 3 is fixed to the first attachment 1, that is, their positions remain unchanged. The guiding device 3 is fixed to or slidably connected to the second attachment 2 to limit the relative rotation and / or movement of the second attachment 2 and the first attachment 1 in a non-first direction, so that the first tooth M1 and the second tooth M2 corresponding to the first attachment 1 and the second attachment 2 respectively move only in the first direction.

[0058] Preferably, the guiding device 3 extends along the target arrangement direction of the first tooth M1 and the second tooth M2. According to the orthodontic plan, it may include one orthodontic step or multiple orthodontic steps. The target arrangement direction herein is the target arrangement direction of any orthodontic step among multiple orthodontic steps, so that the orthodontic patient can be gradually orthodontically treated in a more comfortable state; or the target arrangement direction is the final target arrangement direction, and the teeth always move along the final arrangement direction, achieving the orthodontic effect in one step with better results.

[0059] In one type of embodiment, the guiding device 3 is a slide rail type structure.

[0060] Please refer to Figures 1 to 4As shown, the guiding device 3 includes a pair of guiding rods 31 arranged in the up-down direction. Both of the pair of guiding rods 31 are fixed to the first attachment member 1, and the second attachment member 2 is slidably arranged between the pair of guiding rods 31. The relative movement of the first attachment member 1 fixed to the first tooth M1 and the second attachment member 2 fixed to the second tooth M2 is restricted by the pair of guiding rods 31, and the two can only move along the extending direction of the guiding rods 31.

[0061] The pair of guiding rods 31 are arranged vertically. The up-down double-sided guiding and limiting make the moving direction not easy to deviate and more accurate. At the same time, it can also form a restriction with the second attachment member 2 on the up-down two sides, that is, apply forces to the second attachment member 2 from the up-down two sides to prevent the first attachment member 1 / the first tooth M1 and the second attachment member 2 / the second tooth M2 from tipping over during the movement.

[0062] Furthermore, the guiding device 3 further includes a connecting rod 32. The connecting rod 32 connects the same end sides of the two guiding rods 31 to enhance the strength of the guiding device 3 and prevent the two guiding rods 31 from moving relative to each other or deforming. As Figure 1 shown, when only one connecting rod 32 is provided, the connecting rod 32 is connected to the guiding rod 31 at the end far from the first attachment member 1, that is, the connecting rod 32 connects the free ends of the two guiding rods 31 together to avoid relative movement between the two. Or, when two connecting rods 32 are provided, the two connecting rods 32 are respectively connected to the two ends of the two guiding rods 31, and the whole is in a frame shape, which is convenient for connecting to the first attachment member 1 at one end and enhances its strength at the other end.

[0063] Preferably, the strength of the guiding rod 31 at the end far from the first attachment member 1 is greater than that of the guiding rod 31 at the end fixed to the first attachment member 1. Specifically, at least one of the number and the radial dimension of the guiding rod 31 at the end far from the first attachment member 1 is greater than that of the guiding rod 31 at the end fixed to the first attachment member 1.

[0064] In this embodiment, the extending direction of the guiding rod 31 is designed according to the orthodontic needs, and can be a straight line type or a curve type, preferably a curve type consistent with the curve of the dental arch or the target sorting direction of the teeth.

[0065] As Figures 2 to 4 shown, the shapes of the first attachment member 1 and the second attachment member 2 are not limited. For example, the first attachment member 1 is a rectangle, a parallelogram, a triangle, etc.; the second attachment member 2 is a rectangle, a quadrilateral, a circle, an ellipse, etc.

[0066] The first attachment 1 is fixed to the guide rod 31 without the need to provide a special connection structure. Preferably, a fixing groove is provided on the first attachment 1, and the guide rod 31 is located in the fixing groove, which plays a role of pre-fixing and facilitating fixation.

[0067] The second attachment 2 is provided with an annular clamping groove 21, the cross-section of which is in an I shape, and a pair of the guide rods 31 are located in the clamping groove 21 to achieve limit; at this time, the second attachment 2 can be installed in any direction. Alternatively, the second attachment 2 is provided with a pair of sliding grooves respectively for accommodating a pair of the guide rods 31, the pair of sliding grooves are respectively located at the top and bottom of the second attachment 2, and the two guide rods 31 are respectively located in the pair of sliding grooves to achieve a sliding connection.

[0068] The moving distance of the second attachment 2 along the guide rod 31 is determined according to the orthodontic target, generally not less than 0.1 mm, so as to achieve the expected orthodontic purpose.

[0069] Taking the case where the first tooth M1 does not need to move and the second tooth M2 needs to move as an example. During the orthodontic process, the position of the first tooth M1 / the first attachment 1 remains unchanged, so the guide rod 31 fixed to the first attachment 1 also remains unchanged. It can be understood that the guide rod 31 is fixed by the first attachment 1; when the second tooth M2 moves, restricted by the pair of guide rods 31, it can only move along the extension direction of the guide rod 31, that is, the moving track of the second attachment 2 is consistent with the extension direction of the guiding device 3.

[0070] Taking the case where the first tooth M1 needs to move and the second tooth M2 does not need to move as an example. During the orthodontic process, when the first tooth M1 moves, the guide rod 31 fixed to the first attachment 1 also moves together; but the position of the second tooth M2 / the second attachment 2 remains unchanged, so the movement of the guide rod 31 is restricted by the fixed second attachment 2, and the first tooth M1 / the first attachment 1 can only move along the extension direction of the guide rod 31, that is, the moving track of the first attachment 1 is consistent with the extension direction of the guiding device 3.

[0071] In another type of embodiment, in addition to playing a guiding role, the guiding device 3 can also apply force to the two attachments to further improve the guiding effect.

[0072] Please refer to Figures 5 to 8 As shown, the guiding device 3 is a telescopic rod 33, and the telescopic rod 33 is fixedly connected to both the first attachment 1 and the second attachment 2, preferably a detachable connection, which is convenient for replacement or adjustment.

[0073] When the first tooth M1 / the first attachment 1 and the second tooth M2 / the second attachment 2 move relatively, the distance between the two changes, and the length of the telescopic rod 33 is adaptively extended or shortened, limiting the first attachment or the second attachment to move only along its extension direction / telescopic direction. Of course, in this process, the telescopic rod 33 also provides the first attachment 1 or the second attachment 2 with a force along its extension direction / telescopic direction, which can further promote / restrict the movement of the two attachments along it.

[0074] In the present invention, the telescopic rod 33 extends in a straight line or a curve, preferably a curve consistent with the dental arch curve; the first attachment 1 and the second attachment 2 can only move along the extension direction of the telescopic rod 33 under the restriction of the telescopic rod 33.

[0075] Furthermore, the inventors have found that when the telescopic rod 33 is a sleeve-type non-force-applying structural member, its extension and retraction will not actively apply force to the first attachment 1 and the second attachment 2, and its length will only change adaptively when one of the attachments moves. When the telescopic rod 33 is embedded with an elastic member such as a spring, it may simultaneously apply a pulling force or a pushing force to the first tooth M1 and the second tooth M2 when it is extended and retracted, and even teeth that do not need to move may be affected by the force and move.

[0076] When the first tooth M1 is the tooth to be moved and the second tooth M2 is the non-movable tooth, please refer to Figure 8 As shown, the oral appliance 100 also includes a third attachment 6 for fixing to the third tooth M3 or a third brace worn on the third tooth M3, and an auxiliary positioning member 7 connecting the second attachment 2 and the third attachment 6, and the third attachment 6 is located on the side of the second attachment 2 away from the first attachment 1.

[0077] The second tooth M2 that does not need to be moved is “bound” to the third tooth M3 as a whole through the second attachment 2 , the auxiliary positioning member 7 , and the third attachment 6 , preventing the second tooth M2 from moving when subjected to the pulling force or pushing force of the telescopic rod 33 .

[0078] like Figure 1 , Figures 5 to 8 As shown, in a specific application scenario, the first tooth M1 and the second tooth M2 can select adjacent teeth nearby, the distance between the first attachment 1 and the second attachment 2 is short, and the adjacent tooth assembly makes the guide device 3 small in size. Compared with the arch wire, it is more comfortable to wear and easy to disassemble.

[0079] Based on the above Figures 1 to 8In any of the illustrated embodiments, the oral appliance 100 further includes a first dental appliance 4 and a second dental appliance 5. The first attachment member 1 and the second attachment member 2 are preferably mounted on the first dental appliance 4 and the second dental appliance 5, facilitating adjustment of the mounting position, mounting angle, etc. Therefore, after the first tooth M1 and the second tooth M2 move relative to each other, it is not necessary to replace the guiding device 3. It is only necessary to adjust the position or direction of the first attachment member 1 and the second attachment member 2 on the dental appliances.

[0080] Wherein, as Figure 1 shown, the first dental appliance 4 and the second dental appliance 5 may be integrally provided as the same dental appliance, and this dental appliance covers at least the first tooth M1 and the second tooth M2, and is simple to wear.

[0081] Alternatively, as Figures 5 to 8 shown, the first dental appliance 4 and the second dental appliance 5 are two segmented dental appliances, which can block the transmission of internal stress in the dental appliance between the first tooth M1 and the second tooth M2.

[0082] Preferably, the first dental appliance 4 and the second dental appliance 5 are invisible orthodontic appliances and have an orthodontic function. At this time, each dental appliance covers at least two teeth. For example, when the first tooth M1 needs to move, the first dental appliance 4 covers the first tooth M1 and at least one other tooth, and at least one other tooth serves as a fulcrum for applying force.

[0083] The "orthodontic function" herein preferably includes moving the tooth to be moved towards the target position, and also includes other orthodontic functions, which will not be listed one by one. Of course, when the dental appliance does not have an orthodontic function, any conventional method capable of moving teeth can also be selected to correct the tooth to be moved to the target position.

[0084] In a specific embodiment, the first tooth M1 and the second tooth M2 are two adjacent teeth. The end of the first dental appliance 4 facing the second dental appliance 5 is designed as a closed end and is worn on the first tooth M1, and / or the end of the second dental appliance 5 facing the first dental appliance 4 is designed as a closed end and is worn on the second tooth M2. The closed end means that one end of the first dental appliance 4 facing the second dental appliance 5 wraps the first tooth M1.

[0085] Further, the first dental appliance 4 has a through portion for the first attachment member 1 to pass through and be fixed to the first tooth M1, and / or the second dental appliance 5 has a through portion for the second attachment member 2 to pass through and be fixed to the second tooth M2. The through portion provides a space for the first attachment member 1 and the second attachment member 2.

[0086] Preferably, the through portion is recessed from the side where the gums of the dental appliance are located to the side where the crowns of the teeth are located. After the first attachment member 1 or the second attachment member 2 is fixed to the teeth, the first dental appliance 4 and the second dental appliance 5 can be worn; this facilitates operation.

[0087] In this embodiment, the width of the through portion in the tooth arrangement direction is 1 to 1.5 times the amount of displacement to be corrected, which fully ensures the movement of the first attachment member 1 or the second attachment member 2 in the tooth arrangement direction.

[0088] The present invention also provides an oral appliance, including a dental appliance worn on the teeth of the same jaw, a first attachment member 1 fixed to a portion of the dental appliance corresponding to any non-movable tooth, a second attachment member 2 fixed to a portion of the dental appliance corresponding to any tooth to be moved, and a guiding device 3.

[0089] Among them, the non-movable teeth are teeth that do not need to be corrected and moved, and the teeth to be moved have a displacement amount to be corrected in the first direction; the first direction is as described above and will not be elaborated here.

[0090] The dental appliance can be an ordinary dental appliance, which is only for the convenience of fixing the first attachment member 1 and the second attachment member 2. The dental appliance can also be an invisible orthodontic appliance, which has an orthodontic function for the teeth. The orthodontics here is not limited to the correction of the first tooth M1 and the second tooth M2, but can also be the correction of other teeth.

[0091] In addition, the dental appliance can be an integral dental appliance or can be a segmented first dental appliance 4 and second dental appliance 5. The first dental appliance 4 covers the non-movable teeth, and the second dental appliance 5 covers the teeth to be moved.

[0092] The fixing manner of the first attachment member 1 and the second attachment member 2 to the dental appliance is the same as that in the above embodiment and will not be elaborated here.

[0093] The guiding device 3 is fixed to the first attachment member 1, and the guiding device 3 is fixed to or slidably connected to the second attachment member 2 to limit the relative rotation and / or movement of the second attachment member 2 and the first attachment member 1 in a direction other than the first direction.

[0094] Specifically, the guiding device 3 can adopt the above-mentioned slide rail structure or telescopic rod 33, and its structure and the connection manner with the first attachment member 1 and the second attachment member 2 are the same as those in the above embodiment and will not be elaborated here.

[0095] In summary, for the oral appliance 100 of the present invention, the guiding device 3 restricts the relative displacement directions of two teeth of the same jaw corresponding to the first attachment member 1 and the second attachment member 2 respectively, so as to assist the teeth to be moved to accurately move to the orthodontic target position.

[0096] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0097] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of this application, and they are not intended to limit the protection scope of this application. Any equivalent embodiments or changes made without departing from the technical spirit of this application should be included in the protection scope of this application.

Claims

1. An oral instrument, characterized in that, include: A first attachment, used to be fixed to a first tooth or a dental cap worn on the first tooth; A second attachment, used to be fixed to a second tooth or a dental brace worn on the second tooth, the first tooth and the second tooth are teeth in the same jaw, and the first tooth or the second tooth has a displacement to be corrected in a first direction; A guiding device is fixed to the first attachment, and the guiding device is fixedly or slidably connected to the second attachment to limit the relative rotation and / or movement of the second attachment and the first attachment in a non-first direction.

2. The oral instrument according to claim 1, wherein The guide device extends along the target arrangement direction of the first teeth and the second teeth.

3. The oral instrument according to claim 1, characterized in that, The guide device comprises a pair of guide rods arranged in the up-down direction, the first attachment is fixed to the guide rods, and the second attachment is slidably arranged between the pair of guide rods.

4. The oral instrument according to claim 3, characterized in that, The second attachment is provided with an annular slot, and the pair of guide rods are located in the slot; Alternatively, the second attachment member is provided with a pair of sliding grooves for accommodating a pair of guide rods respectively, and the pair of sliding grooves are respectively located at the top and the bottom of the second attachment member.

5. The oral instrument according to claim 3, characterized in that, The guide rod is straight or curved.

6. The oral instrument according to claim 3, wherein, The guide device further includes at least one connecting rod, and the connecting rod connects the same end sides of the pair of guide rods.

7. The oral instrument according to claim 1, wherein, The guiding device is a telescopic rod, and the telescopic rod is fixedly connected to both the first attachment and the second attachment.

8. The oral instrument according to claim 7, characterized in that, The telescopic rod extends along a straight line or a curve.

9. The oral instrument according to claim 7, characterized in that, The oral appliance further comprises a third attachment for fixing to a third tooth or a dental brace worn on the third tooth, and an auxiliary positioning member connecting the second attachment and the third attachment. The third attachment is located on a side of the second attachment away from the first attachment.

10. The oral instrument according to any one of claims 1 to 9, characterized in that, The guiding device is detachably connected to the first attachment and the second attachment.

11. The oral instrument according to any one of claims 1 to 9, characterized in that, The oral appliance further comprises a first brace worn on a first tooth and a second brace worn on a second tooth, and the first attachment and the second attachment are fixed on the first brace and the second brace respectively.

12. The oral instrument according to claim 11, wherein, The first brace has a through portion through which the first attachment passes to be fixed to the first tooth, and / or the second brace has a through portion through which the second attachment passes to be fixed to the second tooth.

13. The oral instrument according to claim 12, characterized in that, The penetration portion is formed by being recessed from the gum side of the first brace and / or the second brace to the crown side.

14. The oral instrument according to claim 12, characterized in that, The width of the penetration portion along the tooth arrangement direction is 1 to 1.5 times the displacement to be corrected.

15. The oral instrument according to claim 11, wherein The first dental brace and the second dental brace are integrally provided and cover the entire row of teeth; Alternatively, the first brace and the second brace are separately provided.

16. The oral instrument according to claim 15, characterized in that, The end of the first brace facing the second brace is designed as a closed end and is worn on the first tooth, and / or the end of the second brace facing the first brace is designed as a closed end and is worn on the second tooth.

17. The oral instrument according to claim 11, characterized in that, The first braces and the second braces are invisible braces, and the invisible braces cover at least two teeth.

18. An oral instrument, characterized in that, include: Braces, which are worn on the teeth in the same jaw; A first attachment member is fixed to a portion of the mouthpiece corresponding to any non-movable tooth; A second attachment member, which is fixed to a position on the dental appliance corresponding to any tooth to be moved, and the tooth to be moved has a displacement amount to be corrected in a first direction; A guiding device, which is fixed to the first attachment member, and the guiding device is fixed to or slidably connected to the second attachment member to limit the relative rotation and / or movement of the second attachment member and the first attachment member in a direction other than the first direction.

19. The oral instrument according to claim 18, wherein, The dental appliance is an invisible orthodontic appliance.

20. The oral instrument according to claim 18, wherein The guiding device is a guiding slide rail, the first attachment member is fixed to the guiding slide rail, and the second attachment member is slidably arranged on the guiding slide rail; Alternatively, the guiding device is a telescopic rod, and two ends of the telescopic rod are respectively fixed to the first attachment member and the second attachment member.

21. The oral instrument according to claim 18, characterized in that, The dental appliance includes a first dental appliance and a second dental appliance which are arranged in segments along the arrangement direction of the teeth in the same jaw, the first dental appliance covers the non-moving teeth, and the second dental appliance covers the teeth to be moved.

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